发明授权
- 专利标题: Anti-glare film, method for manufacturing the same, and display device using the same
- 专利标题(中): 防眩光膜,其制造方法以及使用其的显示装置
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申请号: US12030730申请日: 2008-02-13
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公开(公告)号: US07567383B2公开(公告)日: 2009-07-28
- 发明人: Tsutomu Nagahama , Yumi Haga , Hitoshi Watanabe , Shinichi Matsumura
- 申请人: Tsutomu Nagahama , Yumi Haga , Hitoshi Watanabe , Shinichi Matsumura
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: K&L Gates LLP
- 优先权: JPP2007-033855 20070214; JPP2007-341220 20071228
- 主分类号: G02B5/02
- IPC分类号: G02B5/02
摘要:
An anti-glare film has a plurality of diffuser elements, and has specified optical properties. The ratio of I(α+1)/I(α) is more than 0.1 to 0.6, where I(α) is an intensity of a light reflected toward an arbitrary angle α of 10° or less from a specular reflection direction of an incident light upon the surface at an angle of 5° to 30° from the surface normal, and I(α+1) is an intensity of a reflected light deviated from the arbitrary angle α by 1° in a wide-angle direction. The gain of a light reflected in the direction at 20° or more from the specular reflection direction of the incident light is 0.02 or less, in which the gain is obtained by normalizing a reflected light intensity using a specular reflection intensity of a standard diffuse plate as 1. The diffuser elements have an average space therebetween of 50 to 300 micrometers.
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